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Figure 1 Molecular structure of the title compound, showing the atom labelling scheme for the asymmetric unit and extended to show the coordination geometry for the K+ cation. Displacement ellipsoids are drawn at the 50% probability level and H atoms are represented as small spheres of arbitrary radii. Symmetry codes: (i) 1/2-x, −y, 1/2+z and (ii) −x,-y,z. |